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Vulnerability · Published Oct 20, 2023 · Assigned by GitHub_M

CVE-2023-45681Out of bounds heap buffer write in stb_vorbis

High 7.3

In plain English

A high-severity out-of-bounds write in stb from nothings. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 44% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.5%top 56.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

stb_vorbis is a single file MIT licensed library for processing ogg vorbis files. A crafted file may trigger memory write past an allocated heap buffer in `start_decoder`. The root cause is a potential integer overflow in `sizeof(char*) * (f->comment_list_length)` which may make `setup_malloc` allocate less memory than required. Since there is another integer overflow an attacker may overflow it too to force `setup_malloc` to return 0 and make the exploit more reliable. This issue may lead to code execution.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12libstbno fix listedDEBIAN-CVE-2023-45681
Debian:13libstbno fix listedDEBIAN-CVE-2023-45681
Debian:14libstbno fix listedDEBIAN-CVE-2023-45681
Ubuntu:22.04:LTSlibstbno fix listedUBUNTU-CVE-2023-45681
Ubuntu:24.04:LTSlibstbno fix listedUBUNTU-CVE-2023-45681
Ubuntu:25.10libstbno fix listedUBUNTU-CVE-2023-45681
Ubuntu:26.04:LTSlibstbno fix listedUBUNTU-CVE-2023-45681
Ubuntu:26.10libstbno fix listedUBUNTU-CVE-2023-45681

Affected products (as reported)

VendorProductVersions
nothings stb <= 1.22

Weakness: CWE-787 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

References